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Posts Tagged ‘CSV’

I had a request to take data from a CSV file that was being automatically downloaded and copy a section of the data into an existing spreadsheet. The spreadsheet had 3 tabs and the copied data had to go to the tab labeled “Raw Data”. Then one of the other tabs would perform calculations and analysis on that raw data. I know I could manually copy the data but this process is already partially automated and the number of rows and columns involved were huge. There are at least 60 columns and over 10,000 rows of data that needed to be copied. So, to Powershell I go!!

I created a Powershell Script that would open both files and then select the data from the csv file and copy it.  Then the script would go to the Excel file and to the required tab before pasting the info.

Here is the final script.

$pathxls = “\\fileserver\data\myshare\sheets\workbook.xls”
$pathcsv = “\\fileserver\data\myshare\sheets\Overview.csv”
$Excel = New-Object -ComObject excel.application
$Excel.visible = $false
$Workbook = $excel.Workbooks.open($pathcsv)
$Workbook2 = $excel.Workbooks.open($pathxls)
$Worksheet = $Workbook.WorkSheets.item(“Overview”)
$Worksheet.activate()
$range = $WorkSheet.Range(“A2:BC2”).CurrentRegion
$range.Copy() | out-null
$Worksheet2 = $Workbook2.Worksheets.item(“RAW DATA”)
$worksheet2.activate()
$range2 = $Worksheet2.Range(“A3:A3”)
$Worksheet2.Paste($range2)
$workbook2.Save()
$workbook.close($false)
$Excel.Quit()
[gc]::collect()
[gc]::WaitForPendingFinalizers()

Now let’s dissect it a bit.

First we declare the variables for the two files $pathxls and $pathcsv and assign the path and file to each variable.

Then we declare a new com object which is an excel application.

We tell it that we don’t want Excel to be visible during the run of the script.

And we then set two workbook variables for the two files.

In the first file (the CSV) we tell it to go to the worksheet labled “Overview” and then make it the activate sheet.  Once there we select a range and copy it.

Then we jump over to the second worksheet and select the tab called “Raw Data” and make it the active sheet.

Once that is done we can paste in the data we’ve copied and then we can save the Excel workbook.  We close the csv file and tell it NOT to save since we don’t need to and then we can quit Excel.

Rather simple and to the point.  It gets the job done.  Now I can either run this manually or set it as a scheduled task.

 

 

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I was recently working on a Windows Server in my office when I noticed it had not been rebooted in a while. That got me to thinking, how many other servers in my environment had gotten in under the radar and were in need of a reboot. So, I decided to try my hand at writing another PowerShell Script. I started with a function called Get-RebootTime which is part of a module called BSonPosh. This module was created by Brandon Shell who is a MVP and who has his own blog at http://bsonposh.com.

What I was looking to do was to have a list of the servers I wanted to check on a regular basis and have it automatically check each server and write the results to a csv file. That way I could review the file at my leisure and sort it by oldest reboot date.

So, I set about creating my script.

First I created a variable to contain my list of servers.

$Servers = "DC1", "FS1", "RPTS1", "SQL1"

Then I wrote a ForEach statement to run a cmd for each item in the $Servers list.

ForEach ($Computer in $Servers) { Get-RebootTime -ComputerName $Computer -Last }

When I ran this in my PowerShell editor it produced the desired results but in a simple list.

RebootTime ComputerName
7/27/2011 1:39:12 PM DC1
2/10/2012 9:16:28 AM FS1
2/11/2012 11:40:59 AM RPTS1

This was great but the output was on the screen and not in a file that I could look at later and it wasn’t in a format I could manipulate. So, next step was to look into outputting the info into a file.

I tried using the Export-Csv cmdlet like this

ForEach ($Computer in $Servers) { Get-RebootTime -ComputerName $ComputerLast | Export-Csv ‘C:\Greg\boottimes.csv’ -notype}

This worked, or so I thought, but in reality all it did was each time overwrite the same file with an entry.  So that when I viewed the file it only showed the LAST server that the script queried.

That wouldn’t do…

So, I started looking into how to get the results of each Get-RebootTime cmd into an array so I could later output the array into csv. 

What I came up with was this:

First I created an empty array called $results to hold all my output.

$results = @()

I also created a variable for the path and name of the output file.

$outputFile = ‘C:\Greg\boottimes.csv’

Then I changed my script to use New-Object cmdlet to create a new object called $result and using the Add-Member cmdlet I was able to add members to my object in the form of the values of the server name and the reboot time each time I looped through. Then I would take the object and add it to my $results array. When the loop was completed I could then use the Export-Csv cmdlet to output $results all at once into a csv file.

Here is what the finished script looked like:

# ServerBootTimes.ps1
# Written by Greg Caporale Febrary 28, 2012
#
# Determines the last date a list of computers was rebooted
# Exports the results to a csv file.
#
# Adjust the server list accordingly
# Adjust the path and file name for the output file to your needs
$results = @()
$Servers = "DC1", "FS1", "RPTS1", "SQL1"
$outputFile = ‘C:\Greg\boottimes.csv’
ForEach ($Computer in $Servers) {
$result = New-Object psObject
$result | Add-Member -MemberType NoteProperty -Name ‘Computer Name’ -Value $Computer
$rbttime = Get-RebootTime -ComputerName $Computer -Last | select -ExpandProperty RebootTime
$result | Add-Member -MemberType NoteProperty -Name ‘Last Reboot’ -Value $rbttime
$results += $result
}
$results | Export-Csv $outputFile -notype

 

SUCCESS!!  I had my csv file and was able to see all the servers and their reboot times.  This was a great exercise for me and it also gave me a nice little utility script that I could have handy or even schedule to run automatically so I always know how long its been between reboots of my servers. 

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